Staxly

Insomnia vs OneSignal

Open-source API client + design platform — the developer-first Postman alternative
vs. Mobile + web push, email, SMS, and in-app messaging at consumer scale

Insomnia websiteOneSignal website

Pricing tiers

Insomnia

Free
$0. Unlimited local. Cloud sync with E2EE. 1 project. Local + Git storage. Up to 3 members.
Free
Pro
$5/user/mo annual. Unlimited projects, cloud sync + Git sync + Insomnia AI.
$5/mo
Enterprise
$25/user/mo. SSO, SAML, RBAC, audit log, dedicated SLA, VPC.
$25/mo
Insomnia website

OneSignal

Free
Unlimited mobile push, 10K web push subs, 10K email/mo, 1 journey. GDPR compliant.
Free
Growth
$19/mo + usage. 20K email/mo included, then $1.50/1K. 3 journeys. Advanced in-app.
$19/mo
Professional
Custom. Unlimited volume, 20 journeys, CSV export, prioritized support.
Custom
Enterprise
Custom. Dedicated CSM, SLA, frequency capping, advanced permissions, HIPAA options.
Custom
OneSignal website

Free-tier quotas head-to-head

Comparing free on Insomnia vs free on OneSignal.

MetricInsomniaOneSignal
active journeys1 journeys
email monthly10000 emails/mo
mobile pushUnlimited subscribers
web push subscribers10000 subscribers

Features

Insomnia · 19 features

  • API Design (OpenAPI)Spec editor + preview.
  • Auth HelpersOAuth, AWS, Hawk, Bearer, etc.
  • Cloud Sync (E2EE)Opt-in encrypted sync.
  • EnvironmentsVariables per env.
  • Git SyncVersion with your repo.
  • GraphQLQuery + schema explorer.
  • gRPCgRPC client.
  • HTTP ClientREST request builder.
  • inso CLIRun API tests + lint specs in CI.
  • Insomnia AIAI-assisted request building.
  • Local-First StorageNo account required.
  • Mock ServerBuild mocks from OpenAPI (Pro).
  • PluginsExtend via Node.js.
  • Request CollectionsGrouped requests.
  • Scratch PadLocal-only mode (re-added after backlash).
  • SOAPWSDL + SOAP.
  • TeamsShared workspaces.
  • Templating EngineNunjucks + JS snippets.
  • WebSocketsWS connection + messages.

OneSignal · 12 features

  • A/B TestingSplit testing across push, email, in-app.
  • Analytics + CohortsDelivery, open, click, conversion metrics + retention cohorts.
  • EmailTransactional + marketing email with templates.
  • Frequency CappingLimit message frequency per user.
  • In-App MessagingIn-app banners, modals, surveys, carousels triggered by events.
  • Intelligent DeliveryOptimize send time per user with ML.
  • JourneysMulti-step automations with branching, delays, actions.
  • Live ActivitiesiOS Dynamic Island + Live Activities.
  • Mobile PushiOS (APNs), Android (FCM/HMS) push notifications.
  • SegmentsDynamic audience targeting by tags, location, behavior.
  • SMSTwo-way SMS in 200+ countries.
  • Web PushBrowser push via service workers (Chrome, Firefox, Edge, Safari, Opera).

Developer interfaces

KindInsomniaOneSignal
CLIinso CLI
SDKPlugin APIOneSignal Android SDK, onesignal_flutter, OneSignal iOS SDK, @onesignal/node-onesignal, OneSignal Unity SDK, OneSignal Web SDK, react-native-onesignal
RESTInsomnia Cloud APIOneSignal REST API
OTHERGit Sync (built-in), Insomnia DesktopOutbound Webhooks
Staxly is an independent catalog of developer platforms. Some links to Insomnia and OneSignal may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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